It's hard to imagine Robert Pattinson not knowing Taylor Lautner. And it's even harder imagining a world where R.Pattz and Kristen Stewart aren't the super couple they are now. Which were both the case before Twilight brought the trio together in 2008.

"I remember meeting Kristen, for sure," Taylor recalled at today's press conference for the final film, Breaking Dawn Part 2. "It's so weird, I don't even remember meeting Rob."

"I can't remember meeting him either!" Rob quipped when he was later informed of Taylor's confession. "When did I meet Taylor? I met him on the movie, I think. He was wearing his wig and stuff. I met Kristen at the audition."

Robert was then asked what his first impression of his costars were and whether those initial thoughts have held up all these years later: "It reminded me a little bit—even with Taylor, who was 15 when I met him—of when I did Harry Potter, looking at Dan [Radcliffe], Rupert [Grint] and Emma [Watson] and being like, 'Those guys are actors!' I was starstruck by them.

"And I was starstruck by those guys when I met them even though I'd only seen Kristen in a few things," R.Pattz continued. "It's funny to see people get humanized. Because with Dan, Rupert and Emma, I still see them as like massively famous people. It's strange to have gone through the same experience with Taylor and Kristen as well."

Whether those first impressions held up, Rob seems proud of the people his costars have become. "It's massive and to see people retain their sanity, as much as possible," he said of dealing with the Twilight phenomenon. "I've seen a lot of other people have minor amounts of fame and just lose their mind completely—like after a casting announcement. It's amazing to see that people manage to maintain."

As for Taylor's aforementioned memory of meeting Kristen, he remembered, "It actually probably was a little awkward when we first did meet each other. We were filming the scene on the beach, the weather was insane, pouring rain and wind, and I was wearing a nasty wig. It was just very uncomfortable. But ever since then, it's been great."

Since the two were already reminiscing about the past, they were both asked what advice they would give their younger selves. Taylor said he'd remind himself to really soak in the whole experience, while Robert had this to say:

"Start drinking vodka instead of beer," he joked. "And try to get a six-pack as early as possible and you'll be a much more successful actor."